“Only 600 can be built (of maybe which 200 or so will come to the U.S.,
although without the roll cage, lightweight
plastic rear window, and lightweight Recaro seats) before the shift of the assembly
lines to the new 911 platform.”
-Porsche Panorama, June 2011, page 24.

“At $185,950, the RS 4.0 doesn't come cheap. But that didn’t stop
customers: All
600 have already been sold, including the 126 that will be shipped to our shores.”
-Car and Driver, June 1, 2011 link